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/*
* Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2013 John Crispin <blogic@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <regex.h>
#include <unistd.h>
#include "procd.h"
unsigned int debug = 0;
void debug_init(void)
{
char line[256];
int r, fd = open("/proc/cmdline", O_RDONLY);
regex_t pat_cmdline;
regmatch_t matches[2];
if (!fd)
return;
r = read(fd, line, sizeof(line) - 1);
line[r] = '\0';
close(fd);
regcomp(&pat_cmdline, "init_debug=([0-9]*)", REG_EXTENDED);
if (!regexec(&pat_cmdline, line, 2, matches, 0)) {
line[matches[1].rm_eo] = '\0';
debug = atoi(&line[matches[1].rm_so]);
}
regfree(&pat_cmdline);
}
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